Re: lockd using up 60% CPU and won't let go

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On Mon, 2008-09-29 at 20:18 -0400, Just Marc wrote:
> Hi,
> 
>  > It's basically just a userspace NFS server, right?
> 
> Correct.
> 
>  > Could you work around the problem by mounting with -onolock?
> 
> That doesn't seem to help.
> 
>  >You might try running wireshark on the "lo" interface and seeing 
> whether there's any NLM traffic from lockd.
> 
> You guessed right.   There's a 12 megabytes per second of NLM traffic on lo.
> 
> unlock call requests and unlock replies saying permission denied, looks 
> like it just repeats forever in a tight loop.

As Bruce said, you need to mount with -onolock. Please unmount _all_
your cfs partitions, then mount them again with -onolock.

Note that -oremount,nolock will not work and for some kernels, mounting
while you have the same cfs partition mounted somewhere else will cause
the kernel to use the 'old' mount options.
See /proc/mounts to find out which mount options the kernel is actually
using.

Cheers
  Trond

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